Fabrication of recoverable magnetic composite materials based on graphene oxide for fast removal of lead and cadmium ions from aqueous solution

2020 ◽  
Author(s):  
Li Hou ◽  
Guangjiong Qin ◽  
Yaqing Qu ◽  
Chunlei Yang ◽  
Xiongfei Rao ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Composite Materials ◽  
Magnetic Composite ◽  
Cadmium Ions ◽  
Lead And Cadmium ◽  
Fast Removal

scholarly journals Removal of Lead and Cadmium Ions from Aqueous Solution by Adsorption on a Low-Cost Phragmites Biomass

Processes ◽  
2019 ◽  
Vol 7 (7) ◽  
pp. 406 ◽  
Author(s):  
Abdulaziz N. Amro ◽  
Mohammad K. Abhary ◽  
Muhammad Mansoor Shaikh ◽  
Samah Ali
Keyword(s):  
Aqueous Solution ◽  
Metal Ions ◽  
Surface Area ◽  
Metal Ion ◽  
Low Cost ◽  
Waste Water Treatment ◽  
Study Data ◽  
Small Surface ◽  
Cadmium Ions ◽  
Lead And Cadmium

In recent years, the interest in waste water treatment increased to preserve the environment. The objective of this study is the removal of lead and cadmium ions from aqueous solution by treated Phragmites biomass (TPB). TPB was characterized by using Fourier transform infrared spectroscopy (FTIR) and energy dispersive X-ray analysis (EDS) which indicates the presence of functional groups that may be responsible of metal adsorption such as hydroxyl, carbonyl, sulfonate and carboxylate. Characterization by scanning electron microscopy (SEM) and surface area analysis using the Brunauer–Emmett–Teller method (BET) illustrated that TPB is nonporous with a small surface area. The influences of various experimental factors were investigated; the proposed method recommended the extraction of Pb+2 and Cd+2 metal ions by TPB at pH 5.0. A contact time of 60 and 45 min was required for the adsorption 50 mL (50 ppm) Pb+2 and Cd+2 respectively to reach equilibrium when 0.10 g TPB was used. The optimum TPB dosage was 0.20 g for adsorption both metal ions when adsorbate solution was 50 mL (50 ppm). Particle sizes of 0.125–0.212 mm showed the best metal ion removal of both metal ions. Thermodynamic study illustrated that both metal ions correlate more with Langmuir isotherm. Furthermore, chemisorption of Pb+2 and Cd+2 on TPB was more likely according to kinetic study data.

Graphene Oxide Oxidized by NaClO as a Highly Effective Adsorbent for Fast Removal of Dye Rhodamine B

2013 ◽  
Vol 302 ◽  
pp. 223-226
Author(s):  
Jun Yong Chen ◽  
Yan Liu ◽  
Jia Jia Gou ◽  
Yong Mei Hao
Keyword(s):  
Waste Water ◽  
Aqueous Solution ◽  
Graphene Oxide ◽  
Removal Efficiency ◽  
Rhodamine B ◽  
Potential Application ◽  
Adsorption Equilibrium ◽  
Cationic Dye ◽  
Short Time ◽  
Fast Removal

The present paper reports a high effective adsorbent graphene oxide (GO) oxidized by NaClO. Its ability to separate cationic dye rhodamine (RhB) from aqueous solution was investigated. The adsorption of RhB onto GO can reach adsorption equilibrium within a short time, and the adsorbent exhibits excellent removal efficiency, which suggests its potential application value in removing dye from waste water.

Removal of lead and cadmium ions from aqueous solution by adsorption onto micro-particles of dry plants

2008 ◽  
Vol 61 (1) ◽  
pp. 10-16 ◽  
Author(s):  
H. Benhima ◽  
M. Chiban ◽  
F. Sinan ◽  
P. Seta ◽  
M. Persin
Keyword(s):  
Aqueous Solution ◽  
Cadmium Ions ◽  
Lead And Cadmium ◽  
Micro Particles

Adsorption behavior of Cr(vi) from aqueous solution onto magnetic graphene oxide functionalized with 1,2-diaminocyclohexanetetraacetic acid

RSC Advances ◽  
2015 ◽  
Vol 5 (56) ◽  
pp. 45384-45392 ◽  
Author(s):  
Fang-ying Guo ◽  
Yun-guo Liu ◽  
Hui Wang ◽  
Guang-ming Zeng ◽  
Xin-jiang Hu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Adsorption Behavior ◽  
Magnetic Composite ◽  
Magnetic Graphene Oxide ◽  
Composite Adsorbent ◽  
Magnetic Graphene

A novel magnetic composite adsorbent was synthesized by grafting 1,2-diaminocyclohexanetetraacetic acid to magnetic graphene oxide (DCTA/E/MGO).

Biosorptive removal of lead and cadmium ions from aqueous solution: The use of carrot residues as low cost non-conventional adsorbent

2012 ◽  
Vol 37 (2) ◽  
pp. 272-279 ◽  
Author(s):  
Sadia Ata ◽  
Feroza Hamid Wattoo ◽  
Lala Rukh Sidra ◽  
Muhammad Hamid Sarwar Wattoo ◽  
Syed Ahmed Tirmizi ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Low Cost ◽  
Cadmium Ions ◽  
Lead And Cadmium

scholarly journals Facile preparation and highly efficient sorption of magnetic composite graphene oxide/Fe3O4/GC for uranium removal

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Aili Yang ◽  
Zhijun Wang ◽  
Yukuan Zhu
Keyword(s):  
Aqueous Solution ◽  
Graphene Oxide ◽  
Adsorption Capacity ◽  
High Efficiency ◽  
Removal Rate ◽  
Low Cost ◽  
Hydrothermal Carbonization ◽  
Maximum Adsorption Capacity ◽  
Magnetic Composite ◽  
Order Kinetic

AbstractIn this work, we reported for the first time a novel magnetic composite graphene oxide/Fe3O4/glucose-COOH (GO/Fe3O4/GC) that was facilely prepared from glucose through the hydrothermal carbonization and further combination with graphene oxide (GO). The chemical and structural properties of the samples were investigated. By the batch uranium adsorption experiments, the magnetic composite GO/Fe3O4/GC exhibits an excellent adsorption performance and fast solid–liquid separation for uranium from aqueous solution. GO/Fe3O4/GC (the maximum adsorption capacity (Qm) was 390.70 mg g−1) exhibited excellent adsorption capacity and higher removal rate (> 99%) for U(VI) than those of glucose-COOH (GC) and magnetic GC (MGC). The effect of the coexisting ions, such as Na+, K+, Mg2+, Ca2+, and Al3+, on the U(VI) removal efficiency of GO/Fe3O4/GC was examined. The equilibrium sorption and sorption rate for the as-prepared adsorbents well fit the Langmuir model and pseudo second-order kinetic model, respectively. The thermodynamic parameters (ΔH0 = 11.57 kJ mol−1 and ΔG0 < 0) for GO/Fe3O4/GC indicate that the sorption process of U(VI) was exothermic and spontaneous. Thus, this research provides a facile strategy for the preparation of the magnetic composite with low cost, high efficiency and fast separation for the U(VI) removal from aqueous solution.

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